Cameron's studies weren't the only one that had those findings, Tim.
From the International Journal of Epidemiology - Modelling the Impact of of HIV disease on mortality in gay and bisexual men:
OBJECTIVE: To assess how HIV infection and AIDS (HIV/AIDS) impacts on mortality rates for gay and bisexual men. METHODS: Vital statistics data were obtained for a large Canadian urban centre from 1987 to 1992. Three scenarios were utilized with assumed proportions of gay and bisexual men of 3%, 6% and 9% among the male population age 20 years. For each scenario, non-HIV deaths were distributed according to the assumed proportion of the total population (3%, 6% or 9%) but 95% of HIV deaths were distributed to gay and bisexual men as this is the proportion of AIDS cases in gay and bisexual men in this centre. The main outcome measures of interest were age-specific patterns of death, life expectancy and life expectancy lost due to HIV/AIDS at exact age 20 years, and the probability of living from age 20 to 65 years.
RESULTS: Estimates of the mid-period gay and bisexual population ranged from 5406 to 16,219 for the three scenarios, and total deaths in these men from 953 to 1703. Age-specific mortality was significantly higher for gay and bisexual men than all men aged 30-44. Life expectancy at age 20 for gay and bisexual men ranged from 34.0 years to 46.3 years for the 3% and 9% scenarios respectively. These were all lower than the 54.3 year life expectancy at age 20 for all men. The probability of living from age 20 to 65 years for gay and bisexual men ranged from 32% for the 3% scenario, to 59% for the 9% scenario. These figures were considerably lower than for all men where the probability of living from 20 to 65 was 78%.
CONCLUSION: In a major Canadian centre, life expectancy at age 20 years for gay and bisexual men is 8 to 20 years less than for all men. If the same pattern of mortality were to continue, we estimate that nearly half of gay and bisexual men currently aged 20 years will not reach their 65th birthday. Under even the most liberal assumptions, gay and bisexual men in this urban centre are now experiencing a life expectancy similar to that experienced by all men in Canada in the year 1871.
http://ije.oxfordjournals.org/cgi/content/abstract/26/3/657
See also "The Health Risks of Gay Sex" - Dr. John Diggs
http://corporateresourcecouncil.org/white_papers/Health_Risks.pdf
But, I guess you'll charge that this is a "hateful propganda site", too. 
Cameron, a former assistant professor at the University of Nebraska who has consulted for such gay-rights opponents as former Rep. William Dannemeyer, R-Calif., heads a group called the Family Research Institute.
Cameron resigned under fire from the American Psychological Association and was later formally terminated from membership following complaints about his research methods. He has had run-ins with other professional groups, including the Nebraska Psychological Association and the American Sociological Association. According to Mark Pietrzyk's exposé in the Oct. 3, 1994, New Republic, the state of Colorado initially hired Cameron as an expert witness to defend its statute restricting gay-rights ordinances, then elected not to use his testimony after it got a closer look. His life-span figures have circulated for years in religious-right circles, but Bennett's comments appear to represent their first real breakout into wider public discussion.
Cameron's method had the virtue of simplicity, at least. He and two co-authors read through back numbers of various urban gay community papers, mostly of the giveaway sort that are laden with bar ads and personals. They counted up obituaries and news stories about deaths, noted the ages of the deceased, computed the average, and published the resulting numbers as estimates of gay life expectancy.What do vital-statistics buffs think of this technique? Nick Eberstadt at the American Enterprise Institute sums up the reactions of several of his fellow demographers: "The method as you describe it is just ridiculous." But you don't have to be a trained statistician to spot the fallacy at its heart, which is, to quote Centers for Disease Control and Prevention statistician John Karon, that "you're only getting the ages of those who die." Gay men of the same generation destined to live to old age, even if more numerous, won't turn up in the sample.
Other critics rattle off further objections. The deaths reported in these papers, mostly AIDS deaths, will tend to represent the community defined by such papers or directly known to their editors. It will include relatively more subjects who live in town and are overtly gay and relatively few who blend into the suburbs and seldom set foot in bars. It will overrepresent those whose passing strikes others as newsworthy and underrepresent those who end their days in retired obscurity in some sunny clime.
http://www.indegayforum.org/news/show/26857.html